3215742 has 8 divisors (see below), whose sum is σ = 6431496. Its totient is φ = 1071912.

The previous prime is 3215741. The next prime is 3215743. The reversal of 3215742 is 2475123.

3215742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3215741) and next prime (3215743).

It is a sphenic number, since it is the product of 3 distinct primes.

3215742 is an admirable number.

It is a super-2 number, since 2×3215742² = 20681993221128, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3² + 2¹⁵ + 1 + 5³ + 7⁷ + 4⁹ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267973 + ... + 267984.

It is an arithmetic number, because the mean of its divisors is an integer number (803937).

Almost surely, 2^3215742 is an apocalyptic number.

3215742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3215742 is a wasteful number, since it uses less digits than its factorization.

3215742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535962.

The product of its digits is 1680, while the sum is 24.

The square root of 3215742 is about 1793.2490066915. The cubic root of 3215742 is about 147.6025065489.

The spelling of 3215742 in words is "three million, two hundred fifteen thousand, seven hundred forty-two".